Improvement in reversible latches



tant

@wat @time W. T. MUNGER, vOF BRAN FORD, AS'SIGNOR TO P. AND F. CORBIN, OF

NEW BRITAIN, CNNECTICUT.

Letters Paten-t No. 84,704, dated December 8, `1868.

To all whom it 'ma/y concern Beit known that I, W. T. MUNGER, of Branford, in the county of New Haven, and State of Connecticut, have invented, made, and applied to use, a certain new and useful Improvement in Locks; and Ido hereby declare the following to be a full, clear, and exactA description of the said invention, reference being had to the annexed drawing, making part of this speciiication, wherein- Figure 1 is an elevation of the lock, Iwith part of the cap-plate and rim of the lock removed; igure 2n is an inverted sectional plan at the linea: :t an

Figure 3 is a detached view of the swinging link and part of the latch-shank.

Sirnilaa marks of reference denote the same parts.

This invention relates to a reversible latch, and consists in the combination of a peculiar lever-stop with the reversible latch, said lever-stop being so constructed and located as to perform three duties: the iirst, to

hold the shank of the latch into its recess in the swing ing link; the second, to form a stop to prevent the latch being withdrawn, thereby forming a' safety-latch; and the third, to allow of the removal of the shank from the swinging link, so that the latch can be drawn sufliciently forward to allow of its being revolved, for revel-sing the position of the inclination at the end, and thereby'making a light or left-hand lock.

In -the thawing, the lever-stop a is shown in black lines in iig. l, in the position first above named. The blue lines show the same when acting as a stop, as namedsecondly, and the red lines the position of said lever for the third-named duty.

b is the lock-case;"

c, the cap;

d, the key-hole for any ordinary lock, if it is desired that a bolt belintroduced.

e is the hub for the spindle of the kno'b, with an arm, f, that acts upon the studs, 2 and 3, of the swinging linklg, that hangs on the fulcium, 4, and has a spring, h, to project the latch.

k is the latch-head upon the shank i, that slides in the xed guides k', and has a button-head,.5, that sets into a recess in the lower end of the link g, the projection 6, behind the button-head 5, coming up behind the same sun'iciently to take the concussion and recoil as the latch is pressed in upon closing the door.

' The lever a is on a fulcrum, 7 and the back end, 8, of 'said lever projects through the lock-case.

o is a spring around 7, (sec iig., 2,) to keep the lever a up against the inside of the cap-plate e, and a tooth, 9, taking notches in the surface of the plate c, steadies the level' a in either of the positionsindicated.

The normal'position of the lever a (first named) is shown by black lines, and, the plate 10, formed at the end of said lever, coming over the shank t', as shown,

holds the button-head om coming out of the recess in the link g, or said lever a may be moved into the position shown' by`blue lines, lwhen the projection l2, coming behind the-lower end of the link g, preventsa the latch being drawn back, and thereby firmly secures the door from being opened by turning'the handle.

The screw inserted to hold the lock to the door, as

at 13, will prevent the lever a; being turned into theY position shown by red lines; but previous to being secured to the door, the lock can be changed, to suit a right or left-hand door, by moving the lever a into the position shown by red lines, which allows the buttonhead 5 to be lifted out of the recess in the link g, and

the latch drawn forward, so that said button-head takes against the guides 7c', as seen in lig'. 3, and in that posi tion the latch can be reversed, pressed back to place, and held by the end, 10, of the stop-lever a.

What I claim, and desire to secure by Letters Patent ishe lever a, acting as a stop, and also retaining the lreversible latch, substantially as speciiied.

In Witness whereof, I have hereunto set my signaf ture, this 9th day of July, A. D. 1868.

W. T. MUNGER. Witnesses:

CHARLES Bnolr, Enwn L. PRIOR. 

